I am in the process of attempting to define for myself the 'definitive' web application development stack from bottom to top. What follows is a list of things I'm currently investigation:

• Virtualization

  • Vagrant

  • virtualbox

  • docker

  • Xen

  • VMWare

• Configuration Management

  • Chef

  • Puppet

  • Boxen

• Continuous Integration

  • strider-cd

  • jenkins

  • hudson

  • circleci

• version control

  • git/github/beanstalk

  • svn

  • mercurial

• Cloud Services

  • node.io

  • AWS

  • digital ocean

  • rackserver

• Javascript

  • javascript

  • coffeescript

  • jquery

  • node.js

  • meteor

  • angular.js

  • backbone.js

  • famo.us

  • aurelia.io

  • socket.io

  • foundation (zurb)

  • bootstrap

• Ruby

  • ruby

  • rvm

  • rails

  • sinatra

• Markup

  • html5

• CSS

  • css3

  • A CSS pre-processor (LESS? SASS?)

  • A css framework: (Bootstrap ? Foundation?)

  • dust.js

• IDE

  • sublime text 2

  • atom

  • brackets

• NoSQL

  • redis -> mongodb -> couchbase

  • redis tutorial

• OS

  • http://smartos.io

so, the question is, what is missing?